Coal-hoisting apparatus.



PATENTED AUG. 20; 1907.

A. SUCK. GOAL HOISTING APPARATUS.

APPLICATION FILED DEG. 14, 1905.-

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PATENTED AUG. 20, 1907 A.SUGK.

,GOAL HOISTING APPARATUS. ALPLIOATION TILED D30. 14, 1905.

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' No. 863,668. PATENTED AUG. 20, 1907.

A. SUCK. GOAL HOISTING APPARATUS.

APPLICATION FILED 1330.14. 1905.

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A. SUCK.

GOAL HOISTING APPARATUS. APPLICATION FILED DBO.14. 1905.

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THE NORRIS PETERS C0,, WASHINGTON, D. c.

ADOLPH SUCK, OF BOSTON, MASSACHUSETTS.

COAL-'HOIS'IING APPARATUS.

Specification of Letters Patent.

Patented Aug. 20, 1907.

Application filed December 14,1905. Serial No. 291,6 70- To all whom itmay concern:

Be it known that 1, ADOLPH SUCK, of Boston, in the county of Suffolk andState of Massachusetts, a citizen of'the United States, have invented anew and useful Improvement in Coal-Hoisting Apparatus, of which thefollowing is a specification.

The invention relates to that class of coal handling apparatus in whichthe boom is supported to turn about a vertical axis so that the grabcarried thereby may be available to unload coal located within aconsiderable are without moving the supporting tower. This constructionis especially adapted ior stationary towers. In such apparatus it isdesirable that the pivot by which the boom is supported shall be locatedwithin the tower frame and well towards the rear end of the boom, and itis also desirable that the boom shall lie at an angle to the horizontal.V

My invention is shown in an apparatus embodying all these features andcarrying a hopper or chute by which the coal raised and dumped by thegrab may be directed to a cart or other receptacle under the tower.

It consists in an apparatus of the general construction described and invarious details of construction to be described below.

The invention will be understood by reference to the drawings in'which-Figure l is a side elevation of an apparatus embodying my invention.Fig. 2 is a horizontal section on line 22 of Fig. 1. Fig. 3 is anenlarged detail showing the pivoting mechanism in side elevation, itssupports be ing in section. Fig. 4 is a section on line 4-4 of Fig. 3.Fig. 5 is a plan of the mechanism shown in Fig. 3. Figs. 6 and 7 aredetails, showing, respectively, in side elevation and plan, the stopoperating mechanism, and Fig. 8 is a detail, showing the trolley and itsposition on the boom.

The various parts of the tower proper are indicated by the letter A. Itwill be noted that it is in ordinary form, except that its upper portionis continued by means of the beam B to carry a sheave I) over whichpasses the rope I), one end of which extends down to the end of the boom0 and the other over the sheave b to the engine indicateddiagrammatically at D. The boom O is hinged at c, and the rope 1) servesto raise and lower the end of the boom. A beam E extends up from thefront of the towel towards the top of the beam l3 to support it at thepoint e where the various guy lines a, e and a for supporting the boom0, are hung and preferably by a pivotal connection which turns as theboom turns. The boom C may be of any one of the well known constructionsfor the purpose of furnishing a track upon which a trolley runs. Iprefer, however, to make it as shown in Fig. 8, that is, comprising twoplates 0 and 0 joined at the top by a plate 0 suitably supported bybraces 0. Upon the side of each plate 0, 0 are bolted L-beams c and c,the upper one of which serves as a track for the trolley wheels f, theunder one 0 being reversed and serving as an additional brace therefor.

The trolley F comprises two plates f to each of which are bolted arms f2 each of which carries at its upper end the axle for one of the trolleywheels f. The plates f are arranged to slide within'the boom and betweenits plates, 0 and c and between the plates f 1 are sheaves f f overwhich the grab hoisting ropes pass.

G is the grab which may be of any suitable kind, the hoisting anddumping ropes of which g, g pass over the sheaves f f 4 and rearwardover sheaves H, H, sheaves H H pivoted on the side of the tower, andsheaves H, H, to suitable drums 011 the engine D. The sheaves H, H aremounted upon the boom 0 near its rear end. The other sheaves referred toare suitably mounted to allow the boom to be swung about its pivotwithout interfering with the draft on the grab ropes. It will beapparent that the sheaves may be otherwise mounted, than as shown in thedrawings for this purpose. It will be noted that by this means the grabis not only hoisted vertically but by the proper use of the hoistingrope the trolley is at the same time pulled up the'boom to the pointfrom which the dumping is to take place; then by giving an extra draftto the dump-- ing rope g the grab is dumped into the cart or otherreceptacle. In the form of my invention shown, the trolley and grab willmove outward and downward by gravity. 1f the boom is horizontal, thetrolley will be moved outward by means provided for that purpose. Suchmeans are well known in the art.

In the drawings there is shown a hopper J located at the bottom of thetower and provided with suitable chutes, it being intended in this formof my apparatus that the contents of the grab shall be dumped therein.

The boom G is supported to be turned about a vertical pivot in thefollowing manner (see Figs. 3, 4 and 5):K, K are crossbeams mounted onthe frame and supporting the yoke-piece K the arms I; of which rest uponthe beams K, K. A cap-piece F is bolted through the arms of thisyoke-piece to the beams K. L is a pivot support comprising two side armsZ joined together by a crossbar Z and a head t the parts being integral.The lower ends of the arms Z terminate in plates Z which are bolted tothe sides 0 c of the boom these plates Z being so shaped andproportioned as not to interfere with the movement of the trolley. Aheaded pin L passes down through a suitable passage in the support L andthrough the cap-piece K and yoke K and may be held in place by a cotterpin L which passes through its lower end, or in any other desirable way.It will be seen that by this construction the boom may be turned througha very considerable are about its vertical axis, this turning beingaccomplished by means located within the tower and in the rear of thepivot, and it will also be noted that as the guys I) all run to thepoint e, which is substantially above the pivot or pin L, the boom canbe thus turned without changing the length of the guys. The means forturning the boom about this pivot L comprises a chain M, the two ends ofwhich are fastened to the two sides of the boom 0, the intermediateportion of the chain passing over sprockets m, m, carried in suitablebearings, one on each side of the tower. The sprocket m is on the end ofthe shaft in running to the rear of the tower and carrying a secondsprocket m over which passes an operating chain mfl an endless chainextending down within reach of the engineer. By pulling this chain theshaft in is turned thus pulling the chain M in either direction by meansof the sprocket in so that the boom may take either one of the positionsindicated in Fig. 2, or any other desired position with relation to thework to be done.

It is desirable in work of this kind that the boom should be providedwith a stop in order that the trolley shall not overrun the hatch, orother point, over which it is desired that it shall be dropped. Suchstops and their relation to the trolley and to the boom itself are wellknown and therefore the stop shown in the drawings at N is only showndiagrammatically. I have, however, shown means for setting this stop atany desired point upon the boom C, comprising sheaves'n at the lower endof the boom and endless chains W, the two ends of each of which arefastened to the stop N, one chain running on each side of the boom G.The stop, it will be understood, is double, one stop being located toreceive each trolley wheel. The two chains pass up to the upper end ofthe boom and there each passes around a sprocket wheel 12 these sprocketwheels being mounted upon a common shaft a carrying a gear n" operatedby a worm n. The shaft 12, carrying this worm also carries at its upperend a. handwheel 11 by means of which this mechanism may be operated tomove the sprockets n in either direction and so move the chains n toeither raise or lower the stop N on the boom.

While I have described these various matters in detail, I do not mean tolimit myself to the exact construction shown in my drawings, as Ibelieve it is new to pivot a boom within the tower structure, or overthe area of its base and in such a way that the trolley may pass outsidethe pivot.

I have referred to the hoisting rope I). The purpose of this rope is tolift the boom, turning it about its hinge 0 when the apparatus is out ofuse.

While I have shown my inventionmounted upon a stationary tower, it isevident that it may be embodied as well in a movable tower.

I have shown in Fig. l, in dotted lines P, a deflector which is locatedat the edge of the hopper .l and serves to deflect the coal receivedfrom the grab so that it will be thrown into either one of the two legsof the hopper, p, p, and not upon the connection between them.

What I claim as my invention is1- I. In a coal handling apparatus, atower, a boom pivoted within the frame of the tower to turn upon avertical axis and provided with guys also connected with the tower insubstantial alinement with the axis of said boom, as set forth.

2. In a coal handling apparatus, a boom pivoted within the frame of thetower to turn upon a vertical axis and provided with guys also connectedwith the tower in substantial alinement with the axis of said boom, atrolley adapted to run on said boom, a grab movable with said trolley,means for operating said grab, and means independent of said graboperating means for turning the boom about its vertical axis.

3. In a coal handling apparatus, a tower, a boom pivotally mountedwithin the base of said tower to turn on a vertical axis, guys tosupport the outer end of said boom, and a support for the upper ends ofsaid guys also located within the base of said tower and substantiallyin line with the axis of said boom, whereby the strain from said boom isdistributed substantially equally over said toner as described,

I. In a coal handling apparatus, a vertically pivoted boom and meanswhereby it is pivoted, comprising a support attached to said boom, ayoke-piece, supports on said tower for said yoke-piece, and a pinjoining said support and yoke piece as described.

5. In a coal handling apparatus, a tower, a pivotal support suitablymounted and located approximately at equal distances from the sides ofsaid tower, and a boom having trolley tracks located on each sidethereof and mounted to hang from said pivotal support, and a trolleyadapted to run on said trolley tracks from one end to the other thereof.whereby a loaded grab may be raised and carried diagonally past saidpivotal support and through said tower to the further side thereof, asset forth.

6. In a coal handling apparatus, a tower, a boom pivoted within theframe of said tower to turn upon a Vertical axis, and means for turningsaid boom upon said axis comprising a chain attached at each end to saidboom, and means whereby said chain may be drawn in one direction or theother to move said boom about said axis, as de scribed.

7. In a coal handling apparatus, a pivot support'com prising two armsand crossbars connecting said arms, a yoke, a support for said yoke anda pivot pin passing through said yoke and said pivot support, a boom,connections between said boom and said arms, and trolley tracks for saidtrolley located on said boomwhereby said trolley my run on said trackspast said pivot support without engagement with the arms thereof asdescribed.

8. In a coal handling apparatus, a tower, a boom ph'otally mountedtherein upon a vertical axis, means for turning said boom about saidvertical axis comprising an endless chain, the ends of which areattached to said boom, the intermediate portion thereof running oversprockets, said sprockets, a shaft carrying one of said sprockets, andmeans for rotating said shaft as described.

9. The coal handling apparatus above described comprising a tower, aboom pivotally mounted within the frame of said tower and provided withguys supported in substantial alinement with and above the pivot of saidboom, said boom extending rearwardly from said pivot, a trolley adaptedto run on said boom from end to end thereof, a grab carried by saidtrolley, and means acting upon the rear end of said boom whereby saidboom may be turned about its pivot, as described.

10. In a coal handling apparatus, a tower, a boom pivoted within theframe of said tower to turn upon a vertical axis. guys also connectedwith the tower in substantial alinement with said axis, said boom beinghinged and pro vided with means such as a hoisting rope whereby itsouter end may be lifted, a sheave to guide said hoisting rope, saidsheave being supported from said tower and within the area of its basewhereby the entire strain of the coal handling operation is supportedwithin the frame In presence of M. I]. FLAHERTY, M. V. FOLEY.

